Whitman, Michael E., 1964-. Principles of information security / Michael E. Whitman, Herbert J. Mattord. - 3rd ed. - Boston : Course Technology, c2009. - 598 pages : illustrations ; 24 cm. Includes index. Introduction to information security --. ISBN: 9780840031167 Subjects--Topical Terms: Computer networks--Security measures.Computer security.Computer networks--Security measures.Computer security. LC Class. No.: TK5105.59